MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm designed to appear as an installation manual, likely to trick users into clicking through to malicious infrastructure. The primary malicious URL identified is https://ttraff.ru/wb?keyword=belimo%20actuator%20installation%20manual, which is flagged as a known malicious redirector. The ML classifier strongly indicated maliciousness, supporting the heuristic findings.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/wb?keyword=belimo%20actuator%20installation%20manual
- http://bimuga.scottyogilviephotography.com/uploads/1/3/0/8/130874276/1198139.pdf
- http://konemiti.npa-mn.org/uploads/1/3/1/4/131453540/4706316.pdf
- http://files.firstchristiantexascity.org/uploads/1/3/0/7/130775743/8416b5bebbe7e.pdf
- http://files.theconfidencefactorforwomen.com/uploads/1/3/1/3/131380440/rozarejixebol.pdf
- http://files.queertrash.nyc/uploads/1/3/0/7/130738512/rumagup.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/22411539251.pdf
- https://cdn.shopify.com/s/files/1/0430/2965/9797/files/34235154843.pdf
- https://cdn.shopify.com/s/files/1/0431/2167/2356/files/fenuko.pdf
- https://cdn.shopify.com/s/files/1/0430/4135/7973/files/varugaritesutomexijovo.pdf
- https://cdn.shopify.com/s/files/1/0433/1700/2405/files/1043369163.pdf
- https://cdn.shopify.com/s/files/1/0435/3651/5221/files/metumiwi.pdf
- https://cdn.shopify.com/s/files/1/0428/9763/7535/files/5681581576.pdf
- https://cdn.shopify.com/s/files/1/0429/3761/4499/files/seasons_worksheets_for_kindergarten.pdf
- https://cdn.shopify.com/s/files/1/0433/8227/6250/files/sefegom.pdf
- https://cdn.shopify.com/s/files/1/0431/6558/1469/files/desozedozuwetijopud.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c4b.binc80c3f034963e20c074154da9fb598ab94fcc270f22ce4e03492a014afdfd788 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C4B | 4996 bytes |
font_01_sfnt_off00006d23.binbbe9ada9d7671d8ac13e685fb4a70e18b1783e70f412ae19f88679272425c8d3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D23 | 9968 bytes |
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